If two bodies are in thermal equilibrium, you know that they contain the same th
ID: 1513376 • Letter: I
Question
If two bodies are in thermal equilibrium, you know that they contain the same thermal energy. have the same specific heat capacity. are at the same temperature exert the same pressure. The quantity that is most directly related to the degree of disorder in a system is Is A. thermal energy B entropy C specific heat kinetic energy temperature When an skater spins faster and faster a, the end other routine by bringing her arms her body, her_ increases because she is decreasing her_. A angular momentum/mass angular momentum/moment of inertia angular momentum angular velocity angular velocity/moment of inertia velocity/ancular momentumExplanation / Answer
9) The third law effectively says that forces are double-ended, so if the earth acts by gravity on the book, the book must act by gravity on the earth. There are two equal and opposite forces, but they're the same type (gravity) and they act on different objects (the book, the earth).
So, it is C) Action-reaction
10)
Newton's second law states that the angular acceleration is proportional to the net torque and inversely proportional to the moment of inertia.
Newton's Second Law: = I
So, it is C) Net torque
11) Given car is speeding up while pulling the trailer => Force of car on trailer > Trailer force on Car
If not, car goes down
So, it is option C)
12) Thermal equilibrium means attaining same temperature . So it is option C)
13) Entropy means disorderness => It is option B)
14)When a skater draws her arms and a leg inward, she reduces the distance between the axis of rotation and some of her mass, reducing her moment of inertia. Since angular momentum is conserved, her rotational velocity must increase to compensate. So, it is option D